... Aluminum Coils: 1. Steel grade: SGCC, DX51D, SPCC. 2. Standard: GB, BS, JIS, 3. Material: Q195, Q215, Q235, SS400 Galvalume steel coils ... or base metal for color-coated steel sheet. Other application: The construction industry: The roof structure, keel, grill, clapboard, ceilings, ... painting; all the production process are made under the ISO9001:2000 strictly.In case you have any other questions, please ...